OMG! I hate that too! The hold music thing... I also hate it when their hold music is basically an advertisement for their establishment. The casino's hold music is like that. Yuck! Freezing at my new job...
Now that I commute an actual distance, all my peeves are car related I think...
Slow people in the fast lane (seems to be a big thing here). People who zoom around me (even though I'm doing (70 - 75) and then slow down in front of me once they get past... People who inch into that tiny bit of space between me and the car ahead of me when I am just using appropriate following distances. The exit I have to get off on for the Casino that is the most frightening exit I've ever seen... AND it is only about 1 semi truck's length in lenght so I am always taking my life in my own hands to use it... (shorter than DAWSON!). I think just people on the freeway in general bug me... : )